ioasic.c revision 1.9
1 /* $NetBSD: ioasic.c,v 1.9 2000/02/03 05:22:47 nisimura Exp $ */ 2 3 /* 4 * Copyright (c) 1994, 1995 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Keith Bostic, Chris G. Demetriou, Jonathan Stone 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 31 __KERNEL_RCSID(0, "$NetBSD: ioasic.c,v 1.9 2000/02/03 05:22:47 nisimura Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/device.h> 36 37 #include <dev/tc/tcvar.h> 38 #include <dev/tc/ioasicvar.h> 39 40 #include <machine/sysconf.h> 41 42 #include <pmax/pmax/pmaxtype.h> 43 #include <pmax/pmax/asic.h> 44 #include <pmax/pmax/kmin.h> 45 #include <pmax/pmax/maxine.h> 46 #include <pmax/pmax/kn03.h> 47 48 #include "opt_dec_3min.h" 49 #include "opt_dec_maxine.h" 50 #include "opt_dec_3maxplus.h" 51 52 #define C(x) ((void *)(x)) 53 #define ARRAY_SIZEOF(x) (sizeof((x)) / sizeof((x)[0])) 54 55 #if defined(DEC_3MIN) 56 static struct ioasic_dev kmin_ioasic_devs[] = { 57 { "lance", 0x0C0000, C(KMIN_LANCE_SLOT), IOASIC_INTR_LANCE, }, 58 { "scc", 0x100000, C(KMIN_SCC0_SLOT), IOASIC_INTR_SCC_0, }, 59 { "scc", 0x180000, C(KMIN_SCC1_SLOT), IOASIC_INTR_SCC_1, }, 60 { "mc146818", 0x200000, C(-1), 0 }, 61 { "asc", 0x300000, C(KMIN_SCSI_SLOT), IOASIC_INTR_SCSI, }, 62 }; 63 static int kmin_builtin_ndevs = ARRAY_SIZEOF(kmin_ioasic_devs); 64 static int kmin_ioasic_ndevs = ARRAY_SIZEOF(kmin_ioasic_devs); 65 #endif 66 67 #if defined(DEC_MAXINE) 68 static struct ioasic_dev xine_ioasic_devs[] = { 69 { "lance", 0x0C0000, C(XINE_LANCE_SLOT), IOASIC_INTR_LANCE }, 70 { "scc", 0x100000, C(XINE_SCC0_SLOT), IOASIC_INTR_SCC_0 }, 71 { "mc146818", 0x200000, C(-1), 0 }, 72 { "isdn", 0x240000, C(XINE_ISDN_SLOT), XINE_INTR_ISDN, }, 73 { "dtop", 0x280000, C(XINE_DTOP_SLOT), XINE_INTR_DTOP, }, 74 { "fdc", 0x2C0000, C(XINE_FLOPPY_SLOT), 0 }, 75 { "asc", 0x300000, C(XINE_SCSI_SLOT), IOASIC_INTR_SCSI, }, 76 { "(TC0)", 0x0, C(0), XINE_INTR_TC_0, }, 77 { "(TC1)", 0x0, C(1), XINE_INTR_TC_1, }, 78 { "(TC2)", 0x0, C(2), XINE_INTR_VINT, }, 79 }; 80 static int xine_builtin_ndevs = ARRAY_SIZEOF(xine_ioasic_devs) - 3; 81 static int xine_ioasic_ndevs = ARRAY_SIZEOF(xine_ioasic_devs); 82 #endif 83 84 #if defined(DEC_3MAXPLUS) 85 static struct ioasic_dev kn03_ioasic_devs[] = { 86 { "lance", 0x0C0000, C(KN03_LANCE_SLOT), IOASIC_INTR_LANCE, }, 87 { "z8530 ", 0x100000, C(KN03_SCC0_SLOT), IOASIC_INTR_SCC_0, }, 88 { "z8530 ", 0x180000, C(KN03_SCC1_SLOT), IOASIC_INTR_SCC_1, }, 89 { "mc146818", 0x200000, C(-1), 0, }, 90 { "asc", 0x300000, C(KN03_SCSI_SLOT), IOASIC_INTR_SCSI, }, 91 { "(TC0)", 0x0, C(0), KN03_INTR_TC_0, }, 92 { "(TC1)", 0x0, C(1), KN03_INTR_TC_1, }, 93 { "(TC2)", 0x0, C(2), KN03_INTR_TC_2, }, 94 }; 95 static int kn03_builtin_ndevs = ARRAY_SIZEOF(kn03_ioasic_devs) - 3; 96 static int kn03_ioasic_ndevs = ARRAY_SIZEOF(kn03_ioasic_devs); 97 #endif 98 99 static int ioasicmatch __P((struct device *, struct cfdata *, void *)); 100 static void ioasicattach __P((struct device *, struct device *, void *)); 101 102 const struct cfattach ioasic_ca = { 103 sizeof(struct ioasic_softc), ioasicmatch, ioasicattach 104 }; 105 106 tc_addr_t ioasic_base; /* XXX XXX XXX */ 107 108 /* There can be only one. */ 109 int ioasicfound; 110 111 static int 112 ioasicmatch(parent, cfdata, aux) 113 struct device *parent; 114 struct cfdata *cfdata; 115 void *aux; 116 { 117 struct tc_attach_args *ta = aux; 118 119 /* Make sure that we're looking for this type of device. */ 120 if (strncmp("IOCTL ", ta->ta_modname, TC_ROM_LLEN)) 121 return (0); 122 123 if (ioasicfound) 124 return (0); 125 126 return (1); 127 } 128 129 static void 130 ioasicattach(parent, self, aux) 131 struct device *parent, *self; 132 void *aux; 133 { 134 struct ioasic_softc *sc = (struct ioasic_softc *)self; 135 struct tc_attach_args *ta = aux; 136 struct ioasic_dev *ioasic_devs; 137 int ioasic_ndevs, builtin_ndevs; 138 int i, imsk; 139 140 ioasicfound = 1; 141 142 sc->sc_bst = ta->ta_memt; 143 if (bus_space_map(ta->ta_memt, ta->ta_addr, 144 0x400000, 0, &sc->sc_bsh)) { 145 printf("%s: unable to map device\n", sc->sc_dv.dv_xname); 146 return; 147 } 148 sc->sc_dmat = ta->ta_dmat; 149 sc->sc_cookie = ta->ta_cookie; 150 151 sc->sc_base = ta->ta_addr; /* XXX XXX XXX */ 152 153 printf("\n"); 154 155 switch (systype) { 156 #if defined(DEC_3MIN) 157 case DS_3MIN: 158 ioasic_devs = kmin_ioasic_devs; 159 ioasic_ndevs = kmin_ioasic_ndevs; 160 builtin_ndevs = kmin_builtin_ndevs; 161 break; 162 #endif 163 #if defined(DEC_MAXINE) 164 case DS_MAXINE: 165 ioasic_devs = xine_ioasic_devs; 166 ioasic_ndevs = xine_ioasic_ndevs; 167 builtin_ndevs = xine_builtin_ndevs; 168 break; 169 #endif 170 #if defined(DEC_3MAXPLUS) 171 case DS_3MAXPLUS: 172 ioasic_devs = kn03_ioasic_devs; 173 ioasic_ndevs = kn03_ioasic_ndevs; 174 builtin_ndevs = kn03_builtin_ndevs; 175 break; 176 #endif 177 default: 178 panic("ioasicmatch: how did we get here?"); 179 } 180 181 /* 182 * Turn off all device interrupt bits. 183 * (This _does_ include TC option slot bits. 184 */ 185 imsk = bus_space_read_4(sc->sc_bst, sc->sc_bsh, IOASIC_IMSK); 186 for (i = 0; i < ioasic_ndevs; i++) 187 imsk &= ~ioasic_devs[i].iad_intrbits; 188 bus_space_write_4(sc->sc_bst, sc->sc_bsh, IOASIC_IMSK, imsk); 189 190 /* 191 * Try to configure each device. 192 */ 193 ioasic_attach_devs(sc, ioasic_devs, builtin_ndevs); 194 } 195 196 #if 1 /* XXX for now XXX */ 197 void 198 ioasic_intr_establish(dev, cookie, level, handler, val) 199 struct device *dev; 200 void *cookie; 201 int level; 202 int (*handler) __P((void *)); 203 void *val; 204 { 205 (*platform.intr_establish)(dev, cookie, level, handler, val); 206 } 207 208 #else /* XXX eventually XXX */ 209 210 void 211 ioasic_intr_establish(ioa, cookie, level, func, arg) 212 struct device *ioa; 213 void *cookie, *arg; 214 int level; 215 int (*func) __P((void *)); 216 { 217 struct ioasic_softc *sc = (void *)ioasic_cd.cd_devs[0]; 218 int i, intrbits; 219 220 for (i = 0; i < ioasic_ndevs; i++) { 221 if (ioasic_devs[i].iad_cookie == cookie) 222 goto found; 223 } 224 panic("ioasic_intr_establish: invalid cookie %d", (int)cookie); 225 found: 226 227 intrtab[(int)cookie].ih_func = func; 228 intrtab[(int)cookie].ih_arg = arg; 229 230 intrbits = ioasic_devs[i].iad_intrbits; 231 i = bus_space_read_4(sc->sc_bst, sc->sc_bsh, IOASIC_IMSK); 232 i |= intrbits; 233 bus_space_write_4(sc->sc_bst, sc->sc_bsh, IOASIC_IMSK, i); 234 } 235 236 void 237 ioasic_intr_disestablish(ioa, cookie) 238 struct device *ioa; 239 void *cookie; 240 { 241 panic("ioasic_intr_disestablish: cookie %d", (int)cookie); 242 } 243 #endif 244
Indexes created Wed Oct 15 03:09:54 GMT 2025